[lldb/Interpreter] Implement ScriptedFrameProvider{,Python}Interface (#166662)

This patch implements the base and python interface for the
ScriptedFrameProvider class.

This is necessary to call python APIs from the ScriptedFrameProvider
that will come in a follow-up.

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

1 files changed, 57 insertions, 0 deletions

diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedFrameProviderPythonInterface.cpp b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedFrameProviderPythonInterface.cpp
new file mode 100644
index 000000000000..b866bf332b7b
--- /dev/null
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedFrameProviderPythonInterface.cpp
@@ -0,0 +1,57 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Host/Config.h"
+#include "lldb/Target/Thread.h"
+#include "lldb/Utility/Log.h"
+#include "lldb/lldb-enumerations.h"
+
+#if LLDB_ENABLE_PYTHON
+
+// LLDB Python header must be included first
+#include "../lldb-python.h"
+
+#include "../SWIGPythonBridge.h"
+#include "../ScriptInterpreterPythonImpl.h"
+#include "ScriptedFrameProviderPythonInterface.h"
+#include <optional>
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::python;
+using Locker = ScriptInterpreterPythonImpl::Locker;
+
+ScriptedFrameProviderPythonInterface::ScriptedFrameProviderPythonInterface(
+    ScriptInterpreterPythonImpl &interpreter)
+    : ScriptedFrameProviderInterface(), ScriptedPythonInterface(interpreter) {}
+
+llvm::Expected<StructuredData::GenericSP>
+ScriptedFrameProviderPythonInterface::CreatePluginObject(
+    const llvm::StringRef class_name, lldb::StackFrameListSP input_frames,
+    StructuredData::DictionarySP args_sp) {
+  if (!input_frames)
+    return llvm::createStringError("Invalid frame list");
+
+  StructuredDataImpl sd_impl(args_sp);
+  return ScriptedPythonInterface::CreatePluginObject(class_name, nullptr,
+                                                     input_frames, sd_impl);
+}
+
+StructuredData::ObjectSP
+ScriptedFrameProviderPythonInterface::GetFrameAtIndex(uint32_t index) {
+  Status error;
+  StructuredData::ObjectSP obj = Dispatch("get_frame_at_index", error, index);
+
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
+    return {};
+
+  return obj;
+}
+
+#endif